my Toyota Corolla E170 (2013-2019) makes a knocking noise when I accelerate

Toyota Corolla E170 (2013-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

608 words

Problem Statement

Learn how to diagnose and fix knocking noise during acceleration in Toyota Corolla E170 (2013-2019). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Engine

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components.
•Always use jack stands when working under the vehicle.

Symptoms

•Knocking noise from the engine compartment during acceleration
•Possible loss of power or hesitation
•Abnormal vibrations felt through the steering wheel
•Check engine light may illuminate
•Unusual smells such as burning oil or fuel

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any engine-related issues.
2
Inspect the engine and transmission mounts for wear or damage.
3
Check the oil level and condition to ensure proper lubrication.
4
Examine the exhaust system for loose components or leaks.
5
Test drive the vehicle while listening for changes in the noise under different acceleration conditions.
6
Inspect the suspension components, including struts and bushings, for signs of wear.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Socket set
•Torque wrench
•Pry bar
•Jack stands
•Oil filter wrench
•Oil catch pan
•Exhaust hanger tool

Parts Required

•Engine mounts
•Transmission mounts
•Engine oil (0W-20)
•Oil filter
•Suspension components (if necessary)

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for any engine-related issues.
2
Inspect the engine and transmission mounts for wear or damage.
3
Check the oil level and condition to ensure proper lubrication.
4
Examine the exhaust system for loose components or leaks.
5
Test drive the vehicle while listening for changes in the noise under different acceleration conditions.
6
Inspect the suspension components, including struts and bushings, for signs of wear.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and is in "Park" or "Neutral."
Disconnect the negative terminal of the battery to prevent electrical shorts.

2. Inspect and Replace Engine/Transmission Mounts

Tools Required: Socket set, torque wrench, pry bar, jack stands
Sub-steps:
1. Lift the vehicle using a jack and secure it with jack stands.
2. Locate the engine and transmission mounts.
3. Visually inspect the mounts for cracks, tears, or excessive wear.
4. If damaged, remove the bolts securing the mounts using a socket set.
5. Replace the old mounts with new ones, ensuring all fasteners are torqued to the manufacturer specifications (typically around 40-50 ft-lbs).

3. Check and Change Engine Oil

Tools Required: Oil filter wrench, oil catch pan, funnel, socket set
Sub-steps:
1. Place an oil catch pan under the engine.
2. Remove the oil drain plug and allow old oil to drain completely.
3. Replace the oil drain plug and tighten it to the manufacturer's torque specifications (usually around 30 ft-lbs).
4. Replace the oil filter using an oil filter wrench.
5. Fill the engine with the appropriate grade of new oil (typically 0W-20 for the Corolla).

4. Inspect and Secure Exhaust Components

Tools Required: Wrench set, exhaust hanger tool
Sub-steps:
1. Inspect the exhaust system, including the catalytic converter and muffler, for loose or damaged parts.
2. Tighten any loose connections or replace damaged components as necessary.
3. Ensure all exhaust hangers are secure and not worn out.

5. Inspect Suspension Components

Tools Required: Jack, jack stands, socket set
Sub-steps:
1. Lift the vehicle and secure it with jack stands.
2. Inspect struts, shocks, and bushings for signs of wear or damage.
3. Replace any worn components as necessary, ensuring proper alignment after installation.